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Table 2 A summarization of the mechanical properties for the bulk and weak region of the transversely isotropic and orthotropic cases

From: Etiology of Keratoconus: proposed biomechanical pathogenesis

  Transversely isotropic Orthotropic
  Bulk Weak region Bulk Weak region
E1 [MPa] 2 1 2 1
E2 [MPa] 2 1 3.5 3.5
E3 [MPa] 4.5 4.5 4.5 4.5
G31 [MPa] 0.2 0.2 0.2 0.2
G32 [MPa] 0.2 0.1 0.2 0.1
V12 0.49 0.49 0.49 0.49